Improvement in making blind-slats



3 Sheets--Sheet 2.

W. W. BYAM. Making Blind-Stats,

Patented Jan. 20, 1874.

UNITED STATES wILLIAMw. EYAM, or CHICAGO, ILLINOIS.

lIMPROVEMENT IN MAKING BLIND-SLATSH.

`Specification forming part of Leiters Patent No. 146,512, dated January 20, 1374; application filed November 131873. v

view of my invention. Fig. 2, Sheet 2, is a half end elevation of the same. Fig. 3, Sheet 3, is a perspective view of the die-block for one end of the slat. Fig. 4, Sheet 3, is a perspective view of the die-block for the other end of theslat. Fig. 7, Sheet 3, is the die fitting into Fig. 3.` Fig. 8, Sheet 3, is the die fitting into Fig. 4. Fig. 5, Sheet 3, the clip-bearing produced by my machine for one end of the sla-t. Fig. 6,'Sheet 3, the clip-bearing produced by my machine for the other end of the s lat.

A is the frame of the machine, which frame is substantially constructed to resist allthe strain of working. B is the driving-pulley keyed to the shaft C, from which shaft the driving motion is communicated to the shaft D by means ofthe pinion and spur wheels E E, keyed onto the shafts. F F represent the bevel-gearing, fastened to the horizontal shaft D and the upright shafts G. The shafts G have on theirupper ends an eccentric,"H,fast

ened securely, the throw of which eccentric `communicates a reciprocating horizontal motion to the rods I.' To these rods are attached,

. by a knuckle-joint, the cutters or dies J, working in slides inthe head-blocks. K L are the eccentrics, straps, and rods' fastened to the shaft D, the` rods of which are connected by means of a knuckle-j oint with the cleat-clamping dies M. The dies work in a slot cut through thelower part of the head-blocks K. The upper end of the die is cut to any shape required to suit the clip-bearings. N is an eccentric with rod, worked from the common 'shaft D in theusual way. To the upper end of Nis attached a steel cutter, O, which cutter O is attached to N by a knuckiejoint, receiving an up-anddown motion as the shaftD revolves,theknife appearing and disappearing above the bedplate at each revolution of D. Of is the upl per stationary knife. P P are eccentrics, which are set in such a manner on the shaft D that the rods Q, working on the center or fulcrum R,w attached to the frame, receivea v ibratory motion at. the upper ends. The upper ends By means of this attachment the vibratory motion of P I) is communicated to S, giving S a horizontal parallelmotion. On S are keyed sockets s, into which the en'ds ofthe pushers T are inserted or fastened, which, being fastward motion as S, pushingthe` slats, asthey come from the cutter O, into the center of the the clampin g-dies.

are the female ofthe dies or cutters `J J, which are attached tothe rods I, as before Inentioned,

In the headblocks K are .also tted the lower knives J2. The dies and dielblocks at each end of the machine are shaped to cutthe difend of the slat, the whole bein g interchangea ble at will. a a are iron feed-rollers, placed at any distance apart to suit the thickness of iron shown. lever o on the fulcrum d, which leverreceives its motion by having the lower a-rm secured, byan adjustable attachment, to the cutter-head J, asl shown in drawing. e is the ratchet-wheel fasteach stroke of the cutter-head J, a revolving motion. By this means the strap-iron, which is coiled on a reel above the machine, when inserted between the two rollers al a', (the rollers being brought close enough together by means of the adj usting-screws `to grasp the broad feed-screw attached to the lower partof the ratchet-lever. gis the die-block cleaner, which cleans the die-block, at each stroke of the die to the die, the cleaning of the diebeing obcompressed by J during the cutting of the iron clip-bearing, and when Jretires the spring re- PATENT OEEICEg are connected to a horizontal bar orrod, S..

ened to S, have the saine backward and formachine opposite to the cutting-dies, and over In` the head-blockK are fastened the die-blocks J1 J .1, which die-blocks and which are shown in detailon Sheet No.3.`

ferent forms of clip-bearing required for each used, by means of adjusting bearing-boxes, as y b is the ratchetpawl, worked from the ened to the axle of @communicating to a, at

surfaces of the iron rmly,)` is fed by frictions at each throw of the eccentricsH, which feed can be regulated as desired by the 'adjusting y J, from the cuttings of theiron which j adhere tained by the action of thespring, which is v tering between the rollers vc a.

covers itself, cleaning the die-block from any adhering cuttings, as will readily be understood from the drawings. 7L is the clamp which secures the head K and all its attachments to the frame A; The movable head K is situated in a groove in the center of the top plate of A, `running the whole length of the machine. K can be secured at any part of this groove to suit the different lengths of slats required, and all the working attachments on D can readily and easilybe adjusted to suit an y position that K maybe placed in, and work with ease and celerity. 'i is a spring attached to t-he front end of K, for the purpose of causing the clamp-block, when displaced from its proper position by the cutter J, to return Vand clamp the upper cleats of the clip-bearing by the pressure of the clamp-dies M from below. k is a strong steel slat-holder fastened to the heads K. The holder is slightly turned up at the receiving end, and takes the slats as they come from the pushers T, and holds them firmly while the dies and clip-fasteners are operating at each end of the slat. m are projecting studs tov guide the strap-iron when en- Z are oil-sponge holders, for the purpose of slightly oiling the iron, which has the effect of causing the same to out more cleanly, the strap-iron being coiled in any length on a reel above.

To operate my invention, the lumber is first made in strips, the proper width and thickness, of any length, by another machine distinct from this. It is then introduced, by hand or machinery, at the point indicated by the arrow, it being understood that the pulley B is connected, by belt or gearing, with the ruiming shafting of shop, and thatV the whole machine is working by means of the. gearing F F. The strip of wood is pushed between the cutters O O', while they are apart, until the strip butts against the stop u. ment the lower cutter O is forced up by the eccentric N, revolving on the shaft D, and cuts the strip, the cut piece of which falls on the top of the frame. The pushers T T, then coming' forward by means of the eccentrics Q and their connections, push the cut piece into the center of the machine under the strong steel spring 7c, whichV holds it firmly. The pushers then retire by means of the eecentrics Q, ready for another slat. During the time that the above operation has been progressing, the

strap-iron, which is coiled on a reel above, is

fed down by the rollers a a', as before eX- plained. At the same time that the cut slat is pushed under the holder k the iron is immediately opposite and between the approaching dies J and the die-blocks Jl and lower knife J2. The dies or cutters J come forward, impelled by the rods l, working from the eccentrics H and connections, and cut the iron against the dieblocks to the shape re-l quired, and lap the cleats partially over the ends of the slat, as will readily be understood by an inspection of the drawings and details.

At this mo- As the shaft D revolves, the dies retire, cleaning the upper edge of the die-block J by the cleaner g, and moving the lower arm of the lever c in a backward direction, and, by means of the upper arm and its connections, causing the roller feed-wheel a to revolve a suitable distance, and to feed down a proper quantity of iron for the next slat. As the dies J retire, the eceentrics L L force up the clamper or clamping-dies M M, which work immediately under the ends of the slats in grooves, and which press the cleats ot' iron which have been turned partially over by the dies J into the wood of the slat, firmly and securely fastening the iron to the wood. The upper cleat-clampin g blocks j, as the dies J retire, arev returned to their proper position in time to receive the thrust of the clamping cleat-dies MA and form the shoulder, which presses the upper cleats into the wood when the pressure is applied from underneath by the dies M. This work is'. all done by one revo-- lution of the shaft D. Vhen the cleats have been pressed into the slat, as eXplained,'the pushers T T come for-ward again with the next slat cut off, shoving the finished one out of the way, the secondY one taking its place under the holder k. Thus thework progresses.. The heads K K can be adjusted to meet any length of slat required. 'I he shaft D can be made to make any number of revolutions required, the whole machine doing its work perfectly.

What I claim as my invention isl. The combination of the revolving. shaft D, eccentric and eccentric rod N, cutters() O', and the stop u, arranged as described, for the purpose of cutting the slats the proper lengths, substantially as specified.

2. The combination of the revolving sha-ft D, eccentrics P,levers Q, working on the fulcrums R, rod or bar S, pusher T, and holder 7s, arranged as described, for the purpose of carry ing the slats to the dies and clamps to receive the clip-bearings, substantially as specified.

3. The combination of revolving shaft D, gearing F F, shaft G, eccentric H, rod I, die or cutters J, die-blocks J l, and lower knives J 2, die-block cleaners g, feed-rollers a a, ratchet b, and ratchet-wheel c, and lever c, arranged as described, for the purpose of cutting the metal elip-bearin gs and feeding the iron to the same, substantially as specified.l

4. The combination of the revolving shaft D, eccentrics and rods L, pressure and cleatclamping dies M, blocks j, and spring z', arranged as described, for the purpose of affixing the metal clip-bearings, substantially as specified.

5. The combination of the adjustable heads K, the frame A, and the clamp h, arranged as described, for the purpose of enabling the ma chine to produce any .required length of slat.

. WM. WV. BYAM.

Y Witnesses:

Gno. L. Lon-D, CLAUDS. CAYL yY. 

